🧙‍♂️ Brought to you by Peptides.gg — Use code UO20 for 20% off — GLP-1's, 90+ Peptides and more!
From the Codex of Ultimate Wisdom

Intelligence

A folio of the realm

Intelligence

Intelligence (INT) is one of the three primary statistics (Statistics — alongside Strength and Dexterity) that constitute a character's physical form. Intelligence determines a character's maximum Mana, drives the active rate of Meditation (the canonical mana-regen skill), and feeds the damage formulas of certain Magery spells. Intelligence has an unmodified maximum of 125 points (achievable via stat allocation + Stat Scrolls) extending up to a hard ceiling of 150 with item-side Intelligence Bonus modifiers. Intelligence is the canonical caster maxim — every Mage, Necromancer, Mystic, Spellweaver, and Tamer build wants INT at or near 125 to ensure a sufficient mana pool for sustained casting.

Primary effects

Mechanic Behavior
Maximum Mana INT + Mana Increase (item modifier)
Meditation efficiency Passive Meditation rate = 2 + (Med × 3 + INT) / 40; INT directly scales the regeneration speed
Spell damage (Magery) INT contributes to the damage formula of several damage spells
Active Meditation success at low mana Per Publish 46: "Players now have a better chance of actively meditating at high intelligence/low mana values."

Intelligence Bonus (item property)

Intelligence Bonus adds directly to base INT:

Property mechanic Detail
Standard range +1 to +8 per item
Hard ceiling on INT via bonus 150
Negative-INT items Some equipment reduces INT — e.g. Orcish Machete and Evil Orc Helm both impose INT penalties

Stacking 25 points of INT Bonus on top of a 125 base reaches the 150 hard cap — useful for long-spell-cycle builds (Mages who chain Energy Bolts) or Tamer/Mage hybrids needing both pet-control mana and casting headroom.

INT-affected Magery damage formulas

A subset of Magery damage spells use INT in their damage calculation:

Spell INT contribution
Magic Arrow INT contributes to base damage roll
Fireball INT contributes
Lightning INT contributes
Mind Blast Base Damage + ((Magery + INT) / 5) rounded down — the canonical INT-leveraged formula
Energy Bolt INT contributes
Explosion INT contributes
Flamestrike INT contributes
Harm INT contributes (and modified by distance from target)

The formula varies per spell, but the pattern is the same: higher INT → higher base spell damage before Evaluating Intelligence multiplies the result.

Mana — the pool that INT governs

Per Mana: a character's max mana = INT + Mana Increase (MI) modifier from gear. MI cap from items is set similarly to Hit Point Increase — see the Mana article for the full mana ecosystem (Mana Regeneration, Lower Mana Cost, Lower Reagent Cost, Mana Vampire / Mana Drain interactions).

A 125-INT mage with a +25 MI suit has 150 max Mana. With Lower Mana Cost (LMC) at 40% (the canonical cap), individual spells cost ~60% of their listed mana, effectively giving the character ~250 spells worth of casting before drain.

Evaluating Intelligence — the assessment tool

A character with the Evaluating Intelligence skill can assess another character's INT (player, NPC, or creature). The in-game message corresponds to an INT range:

Eval Int message Target INT range
Slightly less intelligent than a rock 1–9
Fairly Stupid 10–19
Not the brightest 20–29
About Average 30–39
Moderately intelligent 40–49
Very intelligent 50–59
Extremely intelligent 60–69
Extraordinarily intelligent 70–79
A formidable intellect, well beyond even the extraordinary 80–89
A definite genius 90–99
Superhumanly intelligent in a manner you cannot comprehend 100+

The 100+ message indicates an over-capped character (post-Stat-Scroll application).

Eval Int beyond assessment — the spell-damage multiplier

Beyond the assessment role, Evaluating Intelligence is the canonical damage-multiplier for direct-damage Magery spells — spell damage scales from 1.0× → 4.6× as Eval Int rises from 0 to 100. INT and Eval Int are complementary:

  • INT raises the base damage value going into the spell formula
  • Eval Int multiplies the resulting damage by up to 4.6×

A pure mage stacks both to maximum (INT 125, Eval Int 100) for maximum spell damage.

Stat allocation

INT-gain skills:

Skill INT-gain rate
Magery High
Evaluating Intelligence High
Meditation High
Necromancy High
Mysticism High
Spellweaving High
Spirit Speak Medium
Resisting Spells Medium
Inscription Medium
Animal Lore Medium
Forensic Eval Medium

A character can lock or atrophy their INT via the paperdoll stat arrows.

Build profiles

Archetype Typical INT
Pure Mage 125 (capped)
Necromancer / Mystic 100–125
Spellweaver-Tamer 100–125
Bard-Mage 100
Tamer (combat-focused) 90–100
Pure Warrior / Sampire 25–35 (minimum for Mana-fueled specials and basic Magery utility)
Pure Archer 25 (low — Archery needs almost no INT)

The 125 INT ceiling corresponds to the natural per-stat cap with Stat Scrolls at maximum tier (+25 per stat from Wondrous → Ultimate).

Meditation — the INT regen formula

The Meditation skill's passive mana regen rate is governed by INT and the Meditation skill itself:

Component Formula
Passive Meditation rate 2 + (Med × 3 + INT) / 40
Active Meditation (typing /meditate) 2× the passive rate while concentrating
GM bonus At Meditation 100, an additional 1.1× multiplier
Constraint Wearing non-medable armor (most plate, gauntlets, leggings) disables Meditation passively

A 125-INT GM-Meditation mage in medable armor has a passive regen of (2 + (300 + 125) / 40) = ~12.6 mana per tick, doubled to ~25 mana/tick while actively meditating, multiplied by 1.1× GM bonus = ~28 mana/tick.

Active-meditation low-mana bonus (Pub 46)

Per Publish 46, characters have a better chance of successfully active-meditating at high INT / low mana values. This shifts the meta toward draining mana to a low pool then meditating back up — high-INT casters can recover faster than they could with a passive-only approach.

See also

← Return to the Codex
Folio inscribed by the Scribe  ·  merge  ·  2026-05-14
Folios in the Codex incorporate material adapted from community-maintained Ultima Online wikis, used under the Creative Commons Attribution-ShareAlike 3.0 License. Synthesised, restructured, and rebranded by the Scribe.